Quote:

Quote:

so how is it you guys are missing this BEFORE you drop the engine in the car?
i always prime engines while on the stand so there's no surprises afterward.



So Dram... what would you expect to see for a pressure
while priming and what size drill motor(or what
ever you use).... I know on my stuff I usually see 70




for a HV pump on a smallblock with a std. spring (not hi pressure) and wider racing type bearing clearances, i normally see 65-70 lbs. while priming with a 1/2 HP 1/2" drill at 2400 rpm, which would be equivilent to 4800 rpm engine speed.
as a rule the smaller 3/8 drills are 1/4-1/3 hp and are too weak to turn the pump at full rpm, so the pressure reading could vary quite a bit using one of those.